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A Deduced Feynman Rule for Calculating Retarded and Advanced Green function in Closed Time Path Formalism

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Jun Xiao, Enke Wang

High Energy Physics - Phenomenology · Submitted 1 Apr 2002

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim Based on the closed time path formalism, a new Feynman rule for directly calculating the retarded and advanced Green functions is deduced.

how it is stated · asserted 1.00 read the record →

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arXiv IDhep-ph/0204009 (version 2)
Pith ID2E6OJKFN, Pith's permanent record of this paper and its review
CitationEnke Wang, Jun Xiao. "A Deduced Feynman Rule for Calculating Retarded and Advanced Green function in Closed Time Path Formalism." arXiv:hep-ph/0204009 (2002). https://pith.science/paper/2E6OJKFN
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The compiled record

The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

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Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 2,903 input tokens, $0.0001 reported.

What the abstract itself states, as probabilities: claims first 0.10 · states limitation 0.04 · human participants 0.01 · controlled comparison 0.02 · randomized assignment 0.01 · states quantitative result 0.04 · compares with prior results 0.13 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v2. Results and the main claim are underlined; .

Based on the closed time path formalism, a new Feynman rule for directly calculating the retarded and advanced Green functions is deduced. This Feynman rule is used to calculate the two-point self-energy and three-point vertex correction in $\phi^3$ theory. The generalized fluctuation-dissipation theorem for three-point nonlinear response function is verified.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#sentencerolethe authors' own workstates the main conclusionstrength
s0 Based on the closed time path formalism, a new Feynman rule for directly calculating the retarded and advanced Green functions is deduced. contribution 0.96 0.93 0.86 asserted 1.00
s1 This Feynman rule is used to calculate the two-point self-energy and three-point vertex correction in $\phi^3$ theory. method 0.68 0.90 0.12 asserted 1.00
s2 The generalized fluctuation-dissipation theorem for three-point nonlinear response function is verified. result 0.99 0.86 0.20 asserted 1.00

What kind of paper the classifier reports this is: method or tool 0.72 · evidence from proof or derivation 1.00.

What was examined, and what was not

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  • arXiv listing abstract v2
not examined
  • full text
  • figures and tables
  • references and citing sentences
  • relations to other papers
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  • P abstract
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  • S sections
  • T body sentences
  • C citations
  • R cross-paper relations

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper
Original abstract

Based on the closed time path formalism, a new Feynman rule for directly calculating the retarded and advanced Green functions is deduced. This Feynman rule is used to calculate the two-point self-energy and three-point vertex correction in $\phi^3$ theory. The generalized fluctuation-dissipation theorem for three-point nonlinear response function is verified.

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